body{
  background-color:#ebeff2;
  margin: 0;
  padding: 0;
}
.top{
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 60px;
  background-color: #425363;
}
.left{
  position: absolute;
  left: 0;
  top: 60px;
  width: 200px;
  bottom: 30px;
  background-color: #2b3946;
  ul{
    margin: 0;
    padding: 0;
    li{
      margin: 0;
      padding: 0;
      a{

        color: #688d92;
        text-decoration: none;
        display: block;
        width: 100%;
        height: 40px;
        line-height: 40px;
        text-indent: 30px;
      }
    }
  }
}

.right{
  position: absolute;
  left: 200px;
  right: 0;
  top: 60px;
  bottom: 30px;
}
.bottom{
  position: absolute;
  width: 100%;
  height: 30px;
  bottom: 0;
  background-color: #425363;
  text-align: center;
  color: #FFF;
  line-height: 30px;
}